PlantFiles: Trillium, Wake Robin Trillium grandiflorum
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Hardiness: USDA Zone 3a: to -39.9 °C (-40 °F) USDA Zone 3b: to -37.2 °C (-35 °F) USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F)
Sun Exposure: Partial to Full Shade
Bloom Color: White/Near White
Bloom Time: Mid Spring
Other details: Average Water Needs; Water regularly; do not overwater This plant may be considered a protected species; check before digging or gathering seeds
Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral)
Patent Information: Non-patented
Propagation Methods: By dividing rhizomes, tubers, corms or bulbs (including offsets) From seed; direct sow outdoors in fall
Seed Collecting: Collect seedhead/pod when flowers fade; allow to dry
On Jun 10, 2009, cjcsac from toronto Canada wrote:
these white trillium grow in abundence in ontario canada in the bush. I have had sucsess in transplanting some in my back garden which is protected by a cedar fence on the south side so they do not get direct sun. the only problem i have is collecting the seeds before the ants do.I watch for construction sites where the builders are clearing the bush and just plowing the trillums under and try to bring a couple home, we are not allowed to pick them here but are allowed to transplant them.
On Mar 14, 2006, Malus2006 from Coon Rapids, MN (Zone 4a) wrote:
I think wnstarr mistook an similar speces for Trillium grandiflorum. I don't remember much about the other species that it is similar to Trillium grandiflorum but is less hardy and is native to the Western part of the United States. I have grown it for at least seven years. It is a very slow spreader for me, and the size of the plants differs depending on the amount of light received and whenever it will bloom or not the current season. Self sowing is unnoticing by me at all. So be careful of planting more aggressive plants around them. That includes Jack in the Puplit, Early Meadow rue, and Wild Ginger.
On May 1, 2004, wnstarr from Puyallup, WA (Zone 5a) wrote:
Aren't we lucky to live in the Pacific Northwest where Trillium grandiflorum is a native plant. It blooms early Spring and as the blossom ages it turns pink to almost a burgandy. It is spread by ants gathering the sticky seeds and taking them to their nest. It is the perfect medium for it to germinate. Find then in the woods with dappled sunlight highlighting the wonderful white blooms. Some locals call them "Wild Easterlilies" as they bloom around the time of Easter.
On Apr 26, 2001, kat7 from Bloomingdale, NJ (Zone 6a) wrote:
Showy flower with 3 large white petals backed with 3 attractive green leaves. Blooms April-June
This plant has been said to grow in the following regions:
, Blue Mountain, Alabama Indian Springs Village, Alabama Cordele, Georgia Druid Hills, Georgia Mount Prospect, Illinois Bloomington, Indiana Indianapolis, Indiana Barbourville, Kentucky Hazard, Kentucky Hebron, Kentucky South China, Maine Dracut, Massachusetts Ann Arbor, Michigan Bay City, Michigan Coleman, Michigan Hale, Michigan Midland, Michigan Munising, Michigan Omer, Michigan Paris, Michigan Royal Oak, Michigan Sanford, Michigan Shepherd, Michigan Stevensville, Michigan (2 reports) Traverse City, Michigan (2 reports) Williamsburg, Michigan Blaine, Minnesota (2 reports) Minneapolis, Minnesota Woodland, Minnesota Amenia, New York Buffalo, New York (2 reports) Clarence, New York Croton-on-hudson, New York Himrod, New York Lindley, New York Rochester, New York Syracuse, New York Dundee, Ohio Glouster, Ohio Lebanon, Ohio Salem, Oregon Laflin, Pennsylvania Tioga, Pennsylvania Viola, Tennessee Dallas, Texas Leesburg, Virginia Bainbridge Island, Washington Edgewood, Washington Menomonie, Wisconsin Middleton, Wisconsin Shorewood Hills, Wisconsin